If you have a deck you are replacing, rather than sending it to the landfill make a usable composter.
My original deck was cedar, I cut the boards into 4' sections, than stacked them on top of each other and clamped them together, you than lay the clamped boards down with the narrow side up. Take a circular saw and put 2... 1 inch deep cuts 2 inches apart and approx 2-3 inches from the end of the board, after making the 2 cuts on both ends you can easily knock out he notches with a hammer. When you are done the boards should look like a Lincoln log, you can stack them as high or low that you want. Works great and lasts a long time, plus the old lumber is not being sent to a landfill.
posted before, figured it would be better in this forum.